Computer Simulations of High Pressure Systems

  • M. L. Wilkins


Numerical methods are capable of solving very difficult problems in solid mechanics and gas dynamics. In the design of engineering structures, critical decisions are possible if the behavior of materials is correctly described in the calculation. Problems of current interest require accurate analysis of stress-strain fields that range from a very small elastic displacement to very large plastic deformation. Described here is a finite difference program that solves problems over this range and in two and three space-dimensions and time. A series of experiments and calculations serve to establish confidence in the plasticity formulation. Then the program can be used to design high pressure systems where plastic flow occurs. The purpose is to identify material properties, strength and elongation, that meet the operating requirements. An objective is to be able to perform destructive testing on a computer rather than on the engineering structure. Examples of topical interest are given.


Flow Stress Constitutive Model Tension Test Elastic Limit High Pressure System 
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Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • M. L. Wilkins
    • 1
  1. 1.Lawrence Livermore LaboratoryUniversity of CaliforniaLivermoreUSA

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